The Effect of Intra-anal Nifedipine, Used As Add-on to Conservative Therapy, on Pain in Patients With Anal Fissure

"Multiprofile Hospital for Active Treatment - Doverie AD, Clinic of Gastroenterology", Sofia

"Multiprofile Regional Hospital for Active Treatment - Dr. St. Cherkezov AD Department of Gastroenterology", Veliko Tarnovo

"Institutul Regional de Gastroenterologie si Hepatologie Prof. Dr. Octavian Fodor", Cluj-Napoca

IRGH, Cluj-Napoca

Pelican Impex SRL, Oradea

Centrul Medical de Diagnostic si Tratament Ambulator Neomed SRL, Brasov

"UMHAT Sveti Georgi, Internal Consulting Department", Plovdiv

II MHAT, Internal Clinic, Department of Gastroenterology, Sofia

MC Health BG EOOD, Sofia

Multiprofile Hospital for Active Treatment Lulin, Sofia

"MC New rehabilitation centre'' EOOD", Stara Zagora

IMSP Spitalul Clinic Municipal Nr 1, Chisinau

"IMSP Spitalul Clinic Municipal Nr 3 Sfanta Treime", Chisinau

IMSP Spitalul Clinic Republican, Chisinau

Tvm Med Serv Srl, Cluj-Napoca

SC Schnelbach Medical Care SRL, Ploieşti

"Spit. Clinic Judetean de Urgenta Sf. Apostol Andrei Constanta", Constanța

Dacmed SRL, Ploieşti

Centrul Medical Sfanta Vineri SRL, Bucharest

Med-Gastr Centrum Medyczne, Lodz

Ambulatorium Medyczne Medical Hair & Esthetic, Lublin

Centrum Innowacyjnych Terapii Sp. z o.o. Oddział w Piasecznie, Piaseczno

NZOZ Specjalistyczne Centrum Medyczne Flebo, Wołomin

Institutul Clinic Fundeni, Bucharest